CATEngine Parts

231-8103 Aftercooler — Cat C18 D9T

This is a CAT Aftercooler, a heat exchanger that cools the compressed air from the turbocharger before it enters the engine cylinders, increasing power and efficiency. Manufactured to meet stringent OEM quality standards, it provides superior thermal performance compared to a corroded or leaking aftercooler. Symptoms of a failing aftercooler include a loss of engine power, increased exhaust smoke, and overheating.

Aftercooler – Part No 231-8103 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

WhatsApp for Price & Availability☎ Call Mumbai Office

Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

PM IST.', };

Related CAT Parts

From the same category — may also be needed

107-6916
Uchida Rexroth A10Vd43 Gear Pump
1555619
Flywheel Rear Cover Housing Gasket
4C4784
D\
380-6367-3806367
Water Radiator 380 6367
0r-7983-187-1603
Turbo S200A Turbocharger
3795319
Turbocharger

Browse all CAT Engine Parts →

Ship This Part To Your Location

DubaiSaudi ArabiaNigeriaKenyaSouth AfricaBangladeshMalaysiaGhanaQatarEgypt
India
MaharashtraGujaratTamil NaduRajasthanKarnatakaTelangana

Full shipping information on regional pages · Air freight 2–12 days · GST invoice for India

Installation & Application Notes

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeAftercooler
MaterialAluminum/Steel
ApplicationEngine Turbocharger System
Service LifeReplace based on inspection or performance issues
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of an aftercooler issue is often a reduction in engine power and an increase in exhaust gas temperature. If ignored, internal leaks can lead to coolant entering the combustion chamber or oil contaminating the charge air. This can cause severe engine damage and costly repairs.

Installation Tip

Ensure all mounting surfaces and hose connections are clean and free of debris before installing the new aftercooler. Properly torque all mounting hardware to prevent leaks.

Service Note

Inspect the turbocharger, intake piping, and cooling system for any related issues when replacing the aftercooler.